X-Men: Days of Future Past Set Photo: First Look at James McAvoy's New Style

Another photo from the set of X-Men: Days of Future Past, courtesy of the very active Twitter account of director Bryan Singer.

It shows James McAvoy as Professor X, who has undergone a very Doobie Brothersy shift in style from First Class (or as Singer himself captions the tweet: "Serpico"). Take a look:

McAvoy and Patrick Stewart both return to the role of Professor X, as Days of Future Past combines both the original timeline and the prequel timeline. When a cataclysmic event threatens the planet, Kitty Pryde must travel between the timelines to save it.